Assembling tool for external expansion bus connector of switchgear

Abstract

The invention discloses a switchgear external expansion bus connector assembly tool which comprises a lifting frame assembly, a rotating frame and a translation sliding supporting plate, the lifting frame assembly comprises a bottom plate, top plates and variable shear rod units connected between the top plates, and the variable shear rod units, the top plates and the bottom plate can form a hinged telescopic mechanism through connection; the translation sliding supporting plate is connected to the top of the rotating frame through the sliding translation assembly. The top of the translation sliding supporting plate is provided with two supporting blocks, the two supporting blocks are used for supporting the solid bus respectively, the current transformer arranged on the solid bus in a penetrating mode is placed in the installation space between the two supporting blocks and is not subjected to the supporting force of the solid bus, the connector is installed through the tool device, manual supporting is not needed, and the installation efficiency is improved. Therefore, the labor intensity during the installation of the connector is reduced, and the assembly tool can ensure the uniform stress of the connector, and does not cause the inclination of the bus during the movement, thereby improving the lap joint reliability of the conductive connection surface.

Description

Technical Field

[0001] The present invention relates to the technical field of power transmission and distribution systems, and in particular to an assembly tool for an external expansion busbar of a switch device. Background Art

[0002] Busbar connectors are important components in power transmission and distribution systems. They are protective, conductive, corrosion-resistant, heat-resistant, and wear-resistant, and can ensure the reliability and stability of power system transmission and distribution. Busbar connectors are widely used in substations, power transmission, electric vehicles, industrial equipment, and software-defined power data centers.

[0003] The external busbar connection method is one of the commonly used busbar connection methods for switchgear. It is mainly composed of a three-way connector, a solid busbar, a grounding connection line, etc. During installation, it is usually necessary to pass a current transformer on the solid busbar of the busbar connector for measurement and protection of the switchgear. Then the assembled busbar connector is installed as a whole on the switchgear. The two adjacent switchgears are connected through the bushing and the busbar connector, so that the switchgear can transmit electric energy to each other during operation. The busbar connector installed at the bottom of the equipment usually hangs the current transformer at the bottom of the switchgear or fixes it with a bracket.

[0004] The busbar connector installed at the bottom of the switchgear is extremely difficult to install due to the limitation of the internal space of the product, especially for gas-insulated switchgear. The busbar compartment space is small due to the small cabinet size. In addition, the current transformer mounted thereon is very heavy. It is difficult to install the busbar connector by conventional manual lifting, and the installation is extremely inconvenient. Summary of the invention

[0005] In view of the above-mentioned technical problems in the installation of existing busbar connectors by manual lifting, the purpose of the present invention is to provide an assembly tool for an outward-expanded busbar connector of a switch device. By utilizing a tooling device to install the outward-expanded busbar connector of the switch device, the busbar connector is no longer solely lifted by manpower, thereby reducing the labor intensity during the installation of the busbar connector. The assembly tool can ensure that the connector is subjected to uniform force, and the busbar will not be tilted during movement, thereby improving the reliability of the overlapping of the conductive connection surface.

[0006] In order to achieve the above-mentioned purpose, the switchgear external expansion mother connection assembly tool provided by the present invention comprises a lifting frame assembly, a rotating frame, a translation sliding support plate,

[0007] The lifting frame assembly includes a bottom plate, a top plate, and a variable shear rod unit connected between the top plate and the top plate, the variable shear rod unit and the top plate, the bottom plate can form an articulated telescopic mechanism by being connected, the variable shear rod unit is connected to a driving assembly, the articulated telescopic mechanism can be deformed by driving the driving assembly, and the bottom plate and the top plate can be relatively moved closer or farther by deformation, so that the top plate moves vertically relative to the bottom plate;

[0008] The rotating frame is arranged on the top plate through a rotating assembly, and the rotating frame can rotate relative to the top plate through the rotating assembly.

[0009] The translation sliding support plate is connected to the top of the rotating frame through a sliding and translation assembly, and the translation sliding support plate can move horizontally relative to the rotating frame through the sliding and translation assembly;

[0010] Two support blocks are arranged on the top of the translational sliding support plate, and an installation space for accommodating the placement of the capacitor transformer is formed between the two support blocks. The two support blocks are respectively used to support the solid busbar. The current transformer passed through the solid busbar is placed in the installation space between the two support blocks and is not subject to the lifting force of the solid busbar.

[0011] Furthermore, the bottom plate and the top plate are made of channel steel, the bottom plate and the top plate are arranged oppositely and symmetrically, the variable shear rod assembly is connected between the bottom plate and the top plate, and the three cooperate to form an articulated telescopic mechanism.

[0012] Further, the variable shear rod assembly comprises a first connecting rod, a second connecting rod, a third connecting rod and a first connecting rod having the same structure;

[0013] The middle portion of the first connecting rod is hinged to the middle portion of the second connecting rod, and the middle portion of the third connecting rod is hinged to the middle portion of the fourth connecting rod;

[0014] A first rotating shaft is connected between one end of the first connecting rod and one end of the third connecting rod, and two ends of the first rotating shaft pass through the first connecting rod and the second connecting rod respectively and are hinged to two flanges of the bottom plate;

[0015] A second rotating shaft is connected between one end of the second connecting rod and one end of the fourth connecting rod, and two ends of the second rotating shaft pass through the second connecting rod and the fourth connecting rod respectively and are hinged to two flanges of the bottom plate;

[0016] The other ends of the second connecting rod and the fourth connecting rod are hinged to the two flanges of the top plate respectively;

[0017] The other ends of the first link and the third link are connected to a driving assembly, which can drive the first link and the third link to rotate and move synchronously. The rotation of the first link and the third link drives the second link and the fourth link to rotate and move synchronously. Through the synchronous rotation and movement among the first link, the second link, the third link and the first link, the articulated telescopic mechanism is extended or retracted, driving the bottom plate and the top plate to move closer or farther away from each other.

[0018] Furthermore, the driving assembly consists of a screw and a screw nut. The screw is rotatably connected to the top plate, and the screw nut is threaded on the screw. The screw nut is respectively connected to the first connecting rod and the third connecting rod. By rotating the screw, the screw nut moves linearly along the screw, and the screw drives the first connecting rod and the third connecting rod to rotate and move.

[0019] Furthermore, the rotating component is a thrust cylindrical roller bearing, the inner ring of the thrust cylindrical roller bearing is fixedly connected to a fixed shaft, a circular hole is provided at the bottom of the rotating frame, the rotating frame is sleeved on the outer ring of the thrust cylindrical roller bearing through the circular hole and is fixedly connected to the outer ring of the thrust cylindrical roller bearing, the fixed shaft is passed through the inner ring of the thrust cylindrical roller bearing, one end extends into the rotating frame, and the other end is fixedly connected to the top plate, and the rotating frame and the lifting frame assembly can rotate around the fixed shaft.

[0020] Furthermore, the sliding translation assembly includes a slider and a slide rail, wherein the slider is fixed on the top of the rotating frame, and the slide rail is fixed on the bottom of the translation sliding support plate. The slide rail is engaged with the slider so that the translation sliding support plate and the rotating frame can move in a plane relative to each other.

[0021] Furthermore, two ends of the bottom of the translational sliding support plate are provided with limit blocks, and the two limit blocks are located at two ends of the slide rail.

[0022] Furthermore, the support block is block-shaped as a whole, and a circular arc groove adapted to the fixed busbar is provided on the top.

[0023] Compared with the prior art, the switchgear external expansion busbar assembly tool provided by the present invention has the following beneficial effects:

[0024] (1) The external busbar connector of the switchgear can be installed in a limited space through the tooling device, reducing the installation strength of the external busbar connector;

[0025] (2) The external busbar connector and the current transformer on it can smoothly rise and fall, rotate, translate and perform other stable actions to ensure the reliability of product installation and reduce human installation errors;

[0026] (3) The tooling device has a simple structure and is easy to operate, and is suitable for the installation of external busbar connectors. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0028] Figure 1 A schematic diagram of the three-dimensional structure of the switchgear external expansion mother connection assembly tool provided by the present invention;

[0029] Figure 2 A schematic side view of the structure of the switchgear external expansion mother connection assembly tool provided by the present invention;

[0030] Figure 3 is a schematic diagram of the structure of a busbar connector;

[0031] Figure 4 A schematic diagram of the switchgear external expansion busbar assembly tooling and the busbar connector provided by the present invention when being installed in coordination;

[0032] Figure 5 A schematic diagram showing a first perspective of the switch device external expansion busbar assembly tool provided by the present invention when the busbar connector is connected to the switch device;

[0033] Figure 6 A schematic diagram from a second viewing angle of the switch device external expansion busbar assembly tool provided by the present invention when the busbar connector is connected to the switch device;

[0034] Figure 7 A schematic diagram of the switch device external expansion busbar assembly tool provided by the present invention connecting multiple busbar connectors to multiple switch devices.

[0035] Illustration Description:

[0036] Fixed busbar 1, current transformer 2, current transformer 2, mounting plate 3, three-way connector 4, outer cone bushing 5, fixing stud 6;

[0037] Assembly tooling 10;

[0038] Lifting frame assembly 100, rotating frame 200, translation sliding support plate 300;

[0039] Bottom plate 110, top plate 120, variable shear rod assembly 130, driving assembly 140, screw 141, screw nut 142, first connecting rod 131, second connecting rod 132, third connecting rod 133, first connecting rod 134, first rotating shaft 135, second rotating shaft 136, rotating assembly 210, fixed shaft 211, sliding and translation assembly 310, limit block 301, slider 311, slide rail 312, support block 320. DETAILED DESCRIPTION

[0040] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below with reference to specific diagrams.

[0041] See also Figure 1 , Figure 2 , which is a schematic structural diagram of a switchgear external expansion mother connector assembly tool 10 provided by the present invention.

[0042] The assembly tool 10 provided by the present invention is applied to the busbar connector. By installing the busbar connector on the switch device through the assembly tool 10, manual lifting can be avoided for installation, thereby greatly improving the convenience and reliability of installation.

[0043] As can be seen from the figure, the switchgear external expansion female connector assembly tool 10 provided by the present invention includes three components: a lifting frame assembly 100, a rotating frame 200, and a translation sliding support plate 300.

[0044] The lifting frame assembly 100 includes a bottom plate 110, a top plate 120, and a variable shear rod assembly 130 connected between the top plate 110 and the top plate 120. The variable shear rod assembly 130, the top plate 120, and the bottom plate 110 can form an articulated telescopic mechanism by being connected. The variable shear rod assembly 130 is connected to a driving assembly 140. The articulated telescopic mechanism can be deformed by the driving of the driving assembly 140. The deformation can make the bottom plate 110 and the top plate 120 relatively close to or away from each other, so that the top plate 120 can move vertically relative to the bottom plate 110.

[0045] The rotating frame 200 is disposed on the top plate 120 through the rotating assembly 210 . The rotating frame 200 can rotate relative to the top plate 120 through the rotating assembly 210 .

[0046] The translation sliding support plate 300 is connected to the top of the rotating frame 200 through the sliding translation assembly 310. The translation sliding support plate 300 can move horizontally relative to the rotating frame 200 through the sliding translation assembly 310.

[0047] Two support blocks 320 are provided on the top of the translational sliding support plate 300, and an installation space for accommodating the capacitor transformer 2 is formed between the two support blocks 320. The two support blocks 320 are respectively used to support the solid busbar 1. The current transformer 2 passed through the solid busbar 1 is placed in the installation space between the two support blocks 320 and is not subject to the lifting force of the solid busbar 1.

[0048] Compared with the prior art, the present solution utilizes assembly tools 10 to install the outward-expanded busbar connector of the switchgear, and no longer relies solely on manpower to lift the busbar connector, thereby reducing the labor intensity during the installation of the busbar connector. Moreover, manual lifting cannot ensure uniform force on the connector, which may easily cause the busbar to tilt, resulting in unreliable overlap of the conductive connection surface, which may bring certain safety hazards to the switchgear.

[0049] In actual application, the two support blocks 320 on the top of the translation sliding pallet 300 lift the busbar connector, and through the setting of the driving component 140, the rotating component 210 and the translation component 310, the position of the busbar connector on the translation sliding pallet 300 can be adjusted. Compared with the manual lifting method, this solution can make the busbar connector move smoothly through the assembly tool 10, which can improve the installation reliability.

[0050] Specifically, Figure 1 and Figure 2 The bottom plate 110 and the top plate 120 are preferably made of channel steel, and the bottom plate 110 and the top plate 120 are arranged oppositely and symmetrically.

[0051] The variable shear rod assembly 130 is connected between the bottom plate 110 and the top plate 120, and the three cooperate to form a hinged telescopic mechanism;

[0052] The variable shear rod assembly 130 includes a first connecting rod 131, a second connecting rod 132, a third connecting rod 133 and a first connecting rod 134 having the same structure;

[0053] The middle portion of the first connecting rod 131 is hinged to the middle portion of the second connecting rod 132, and the middle portion of the third connecting rod 133 is hinged to the middle portion of the fourth connecting rod 134;

[0054] A first rotating shaft 135 is connected between one end of the first connecting rod 131 and one end of the third connecting rod 133 . Two ends of the first rotating shaft 135 pass through the first connecting rod 131 and the second connecting rod 133 respectively and are hinged to two flanges of the bottom plate 110 .

[0055] A second rotating shaft 136 is connected between one end of the second connecting rod 132 and one end of the fourth connecting rod 134 . Two ends of the second rotating shaft 136 pass through the second connecting rod 132 and the fourth connecting rod 134 respectively and are hinged to two flanges of the bottom plate 110 .

[0056] The other ends of the second connecting rod 132 and the fourth connecting rod 134 are hinged to the two flanges of the top plate 120 respectively;

[0057] The other ends of the first link 131 and the third link 133 are connected to the driving assembly 140, and the driving assembly 140 can make the first link 131 and the third link 133 rotate and move synchronously. The rotation of the first link 131 and the third link 133 drives the second link 132 and the fourth link 134 to rotate and move synchronously. Through the synchronous rotation and movement among the first link 131, the second link 132, the third link 133 and the first link 134, the articulated telescopic mechanism is extended or retracted, so that the bottom plate 110 and the top plate 120 are relatively close to or far away from each other.

[0058] Furthermore, if Figure 2In this solution, the driving assembly 140 is preferably composed of a screw rod 141 and a screw nut 142. The screw rod 141 is rotatably connected to the top plate 120, and the screw nut 142 is screwed on the screw rod 141. The screw nut 142 is respectively connected to the first connecting rod 131 and the third connecting rod 133. By rotating the screw rod 141, the screw nut 142 makes a linear motion along the screw rod 141, and the screw rod 141 drives the first connecting rod 131 and the third connecting rod 133 to rotate and move.

[0059] This solution does not limit the rotatable connection between the screw rod 141 and the top plate 120, which can be determined according to actual needs. For example, both ends of the screw rod 141 can be fixed in the inner ring of the bearing assembly, and the outer ring of the bearing assembly is connected to the top plate 120, thereby realizing a rotatable connection between the two.

[0060] Furthermore, if Figure 2 The rotating assembly 210 is a thrust cylindrical roller bearing, and the inner ring of the thrust cylindrical roller bearing is fixedly connected with a fixed shaft 211. A circular hole is provided at the bottom of the rotating frame 200, and the fixed shaft 211 is sleeved on the outer ring of the thrust cylindrical roller bearing through the circular hole and fixedly connected with the outer ring of the thrust cylindrical roller bearing. The fixed shaft 211 is penetrated in the inner ring of the thrust cylindrical roller bearing, one end of which extends into the rotating frame 200, and the other end is fixedly connected to the top plate 120. The rotating frame 200 and the lifting frame assembly 100 rotate around the fixed shaft 211.

[0061] Furthermore, if Figure 2 The sliding translation assembly 310 includes a slider 311 and a slide rail 312. The slider 311 is fixed on the top of the rotating frame 200, and the slide rail 312 is fixed on the bottom of the translation sliding support plate 300. The slide rail 312 is engaged with the slider 311, so that the translation sliding support plate 300 and the rotating frame 200 can move relative to each other in a plane.

[0062] In order to limit the maximum travel of the translation sliding support plate 300 , limit blocks 301 are provided at both ends of the bottom of the translation sliding support plate 300 , and the two limit blocks 301 are located at both ends of the slide rail 312 .

[0063] Furthermore, if Figure 1 The supporting block 320 is block-shaped as a whole, and a circular arc groove 321 adapted to the fixed busbar 1 is provided on the top, and the circular arc groove 321 is used to support the fixed busbar.

[0064] like Figure 3 , the figure is a schematic diagram of the structure of the busbar connector, the busbar connector includes a fixed busbar 1, the fixed busbar 1 is provided with a current transformer 2, the top of the current transformer 2 is connected to a mounting plate 3, and both ends of the fixed busbar 1 are connected to three-way connectors 4.

[0065] The following examples illustrate the working process of the present invention in a specific application. It should be noted that the following content is only a specific application example of the present solution and does not constitute a limitation to the present solution.

[0066] First, assemble the busbar connector to be installed and the current transformer 2 mounted thereon. Figure 3 As shown, when the busbar starts to be installed, the assembly tool 10 provided by the present solution is placed at an appropriate position in the busbar compartment of the switchgear. The bottom plate 110 of the lifting frame assembly 100 needs to be placed stably. The operating direction of the screw rod 141 on the assembly tool 10 is adjusted so that the operating head of the screw rod 141 faces outward or to the side convenient for operation. The sliding support plate 300 is translated to maintain balance. The studs used to fix the busbar connector are respectively installed on the two outer cone sleeves 5 to be installed on the switchgear and tightened with a torque wrench. The exposed part of the studs needs to meet the installation requirements of the busbar connector. The assembled and connected busbar connector is moved to the assembly tool 10.

[0067] The solid busbar 1 of the busbar connector is placed on the two support blocks 320 on the top of the translation sliding support plate 300, and the current transformer 2 is placed in the middle of the two support blocks 320 and fits with the translation sliding support plate 300. The current transformer 2 is no longer supported by the solid busbar 1. The position of the tooling is adjusted, the translation sliding support plate 300 on the tooling is moved, and the rotating frame 200 is rotated to adjust the busbar connector to a suitable position, so that the three-way connectors 4 at both ends of the solid busbar 1 are aligned with the outer cone sleeve 5 on the switch device, and the screw rod 141 is continued to be rotated with a special tool to adjust the end face height of the translation sliding support plate 300. During the process, the position of the current transformer 2 is continued to be adjusted so that the mounting hole position of the mounting fixing plate 3 on the current transformer 2 is aligned The fixing stud 6 at the bottom of the switchgear continues to lift the position of the translation sliding support plate 300, the outer cone bushing 5 enters the three-way joint 4, one end of the stud passes through the metal connector in the three-way joint 4, the fixing stud 6 at the bottom of the switchgear passes through the mounting hole of the mounting plate 3 on the current transformer 2, and the mounting plate 3 is fixed with fasteners to fix the current transformer 2, and the translation sliding support plate 300 continues to be lifted, and the solid busbar 1 is lifted with the support block 320 to make the three-way connector 4 bear force, and the three-way connectors 4 at both ends are fastened to the outer cone bushing 5 of the switchgear with fasteners, and the tooling height is lowered and removed, and the remaining parts of the busbar connector of this phase (plug, rear protective cap, etc.) are installed, and the three-way joint and the shielding layer grounding wire are connected and grounded reliably;

[0068] Continue to install the remaining 2-phase busbar connectors according to the above steps, from the inside of the cabinet to the outside, to complete the installation of the switchgear external busbar connector. Figure 4 , Figure 5 , Figure 6 , Figure 7 shown.

[0069] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A switchgear external expansion mother connection assembly tool, characterized in that: Including lifting frame assembly, rotating frame, translation sliding pallet, The lifting frame assembly includes a bottom plate, a top plate, and a variable shear rod unit connected between the top plate and the top plate, the variable shear rod unit and the top plate, the bottom plate can form an articulated telescopic mechanism by being connected, the variable shear rod unit is connected to a driving assembly, the articulated telescopic mechanism can be deformed by driving the driving assembly, and the bottom plate and the top plate can be relatively moved closer or farther by deformation, so that the top plate moves vertically relative to the bottom plate; The rotating frame is arranged on the top plate through a rotating assembly, and the rotating frame can rotate relative to the top plate through the rotating assembly. The translation sliding support plate is connected to the top of the rotating frame through a sliding and translation assembly, and the translation sliding support plate can move horizontally relative to the rotating frame through the sliding and translation assembly; Two support blocks are arranged on the top of the translational sliding support plate, and an installation space for accommodating the placement of the capacitor transformer is formed between the two support blocks. The two support blocks are respectively used to support the solid busbar. The current transformer passed through the solid busbar is placed in the installation space between the two support blocks and is not subject to the lifting force of the solid busbar.

2. The switchgear external expansion female connector assembly tool according to claim 1, characterized in that: The bottom plate and the top plate are made of channel steel, the bottom plate and the top plate are opposite and symmetrically arranged, the variable shear rod assembly is connected between the bottom plate and the top plate, and the three cooperate to form an articulated telescopic mechanism.

3. The switchgear external expansion female connector assembly tool according to claim 2, characterized in that: The variable shear rod assembly comprises a first connecting rod, a second connecting rod, a third connecting rod and a first connecting rod of the same structure; The middle portion of the first connecting rod is hinged to the middle portion of the second connecting rod, and the middle portion of the third connecting rod is hinged to the middle portion of the fourth connecting rod; A first rotating shaft is connected between one end of the first connecting rod and one end of the third connecting rod, and two ends of the first rotating shaft pass through the first connecting rod and the second connecting rod respectively and are hinged to two flanges of the bottom plate; A second rotating shaft is connected between one end of the second connecting rod and one end of the fourth connecting rod, and two ends of the second rotating shaft pass through the second connecting rod and the fourth connecting rod respectively and are hinged to two flanges of the bottom plate; The other ends of the second connecting rod and the fourth connecting rod are hinged to the two flanges of the top plate respectively; The other ends of the first link and the third link are connected to a driving assembly, which can drive the first link and the third link to rotate and move synchronously. The rotation of the first link and the third link drives the second link and the fourth link to rotate and move synchronously. Through the synchronous rotation and movement among the first link, the second link, the third link and the first link, the articulated telescopic mechanism is extended or retracted, driving the bottom plate and the top plate to move closer or farther away from each other.

4. The switchgear external expansion female connector assembly tool according to claim 3, characterized in that: The driving assembly consists of a screw and a screw nut. The screw is rotatably connected to the top plate, and the screw nut is screwed on the screw. The screw nut is respectively connected to the first connecting rod and the third connecting rod. By rotating the screw, the screw nut moves linearly along the screw, and the screw drives the first connecting rod and the third connecting rod to rotate and move.

5. The switchgear external expansion female connector assembly tool according to claim 1, characterized in that: The rotating assembly is a thrust cylindrical roller bearing, the inner ring of which is fixedly connected to a fixed shaft. A circular hole is provided at the bottom of the rotating frame, through which the rotating frame is sleeved on the outer ring of the thrust cylindrical roller bearing and fixedly connected to the outer ring of the thrust cylindrical roller bearing. The fixed shaft passes through the inner ring of the thrust cylindrical roller bearing, with one end extending into the rotating frame and the other end fixedly connected to the top plate. The rotating frame and the lifting frame assembly can rotate around the fixed shaft.

6. The switchgear external expansion female connector assembly tool according to claim 1, characterized in that: The sliding translation assembly includes a slider and a slide rail. The slider is fixed on the top of the rotating frame, and the slide rail is fixed on the bottom of the translation sliding support plate. The slide rail is engaged with the slider so that the translation sliding support plate and the rotating frame can move in a plane relative to each other.

7. The switchgear external expansion female connector assembly tool according to claim 6, characterized in that: Limit blocks are arranged at both ends of the bottom of the translation sliding support plate, and the two limit blocks are located at both ends of the slide rail.

8. The switchgear external expansion female connector assembly tool according to claim 1, characterized in that: The support block is block-shaped as a whole, and a circular arc groove adapted to the fixed busbar is provided on the top.

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